Home / 306,712.58-423,282.66-185,864.45

Finding the Fourth Proportional to 306,712.58, 423,282.66 and 185,864.45

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Solution

The fourth proportional to 306,712.58, 423,282.66 and 185,864.45 is: 256,504.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,712.58 : 423,282.66 = 185,864.45 : x
  2. Step 2: Convert to fraction form
    306,712.58/423,282.66 = 185,864.45/x
  3. Step 3: Cross multiply
    306,712.58x = 423,282.66 × 185,864.45
  4. Step 4: Simplify right side
    306,712.58x = 78,673,198,795.44
  5. Step 5: Solve for x
    x = 78,673,198,795.44/306,712.58
  6. Step 6: Final answer
    x = 256,504.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.